APA (7th ed.) Citation

British Trust for Conservation Volunteers & Brooks, A. (1978). Dry stone walling: A practical conservation handbook. The Trust.

Chicago Style (17th ed.) Citation

British Trust for Conservation Volunteers and Alan Brooks. Dry Stone Walling: A Practical Conservation Handbook. London: The Trust, 1978.

MLA (9th ed.) Citation

British Trust for Conservation Volunteers and Alan Brooks. Dry Stone Walling: A Practical Conservation Handbook. The Trust, 1978.